# 555 Calc vs Waves Portal

The clearest difference is review sentiment: 555 Calc at 50% against Waves Portal's 0%. 555 Calc also leads on iOS requirement (11.0 vs 15.6). Waves Portal's advantage is ads (none vs shown) and update cadence (daily vs every 20 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

555 Calc ships an update every 20 months, Waves Portal daily. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 555 Calc | Waves Portal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/555-calc/id868058244/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 20 months | **Daily** |
| Monetization | Ad-supported | **Free** |
| Size | 18 MB | 31 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jibiki Works](https://appshunter.io/developer/556845808) | [Salem Berro](https://appshunter.io/developer/1723378213) |

## What reviewers say

### 555 Calc

[App page](https://appshunter.io/ios/app/555-calc/id868058244)

This utility app helps engineers and hobbyists calculate resistor values for circuits using the Timer IC 555. Simply input frequency, duty ratio, and capacitor values to get the required resistor outputs.

**Highlights:** Calculate resistor values, Input frequency, Input duty ratio, Input capacitor value, Timer IC 555 circuit design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Waves Portal

[App page](https://appshunter.io/ios/app/waves-portal/id6744404765)

This app lets X subscribers check their subscription details, including expiration dates, current speed, and activated packages. Users can also monitor daily and monthly data consumption, view internet logs, and review payment history and subscription balances.

**Highlights:** Check subscription details, View expiration dates, Monitor data consumption, Track internet logs, Review payment history, Check subscription balance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 555 Calc free?

555 Calc is free to download, with no in-app purchases.

### Is Waves Portal free?

Waves Portal is free to download, with no in-app purchases.

### Do 555 Calc or Waves Portal have ads?

555 Calc shows ads; Waves Portal does not.

### Which is updated more often, 555 Calc or Waves Portal?

555 Calc ships an update every 20 months, and Waves Portal daily. Most recently, 555 Calc was updated on November 1, 2026 and Waves Portal on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*